Through the Looking-Glass with ALICE into the Quark-Gluon Plasma: A New Test for Hadronic Interaction Models Used in Air Shower Simulations. (arXiv:1907.09816v3 [hep-ph] UPDATED)

Through the Looking-Glass with ALICE into the Quark-Gluon Plasma: A New Test for Hadronic Interaction Models Used in Air Shower Simulations. (arXiv:1907.09816v3 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Anchordoqui_L/0/1/0/all/0/1">Luis A. Anchordoqui</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Canal_C/0/1/0/all/0/1">Carlos Garcia Canal</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Sciutto_S/0/1/0/all/0/1">Sergio J. Sciutto</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Soriano_J/0/1/0/all/0/1">Jorge F. Soriano</a>

Recently, the ALICE Collaboration reported an enhancement of the yield ratio
of strange and multi-strange hadrons to charged pions as a function of
multiplicity at mid-rapidity in proton-proton, proton-lead, lead-lead, and
xenon-xenon scattering. ALICE observations provide a strong indication that a
quark-gluon plasma is partly formed in high multiplicity events of both small
and large colliding systems. Motivated by ALICE’s results, we propose a new
test for hadronic interaction models used for analyzing
ultra-high-energy-cosmic-ray (UHECR) collisions with air nuclei. The test is
grounded in the almost equal column-energy density in UHECR-air collisions and
lead-lead collisions at the LHC. We applied the test to post-LHC event
generators describing hadronic phenomena of UHECR scattering and show that
these QCD Monte Carlo-based codes must be retuned to accommodate the
strangeness enhancement relative to pions observed in LHC data.

Recently, the ALICE Collaboration reported an enhancement of the yield ratio
of strange and multi-strange hadrons to charged pions as a function of
multiplicity at mid-rapidity in proton-proton, proton-lead, lead-lead, and
xenon-xenon scattering. ALICE observations provide a strong indication that a
quark-gluon plasma is partly formed in high multiplicity events of both small
and large colliding systems. Motivated by ALICE’s results, we propose a new
test for hadronic interaction models used for analyzing
ultra-high-energy-cosmic-ray (UHECR) collisions with air nuclei. The test is
grounded in the almost equal column-energy density in UHECR-air collisions and
lead-lead collisions at the LHC. We applied the test to post-LHC event
generators describing hadronic phenomena of UHECR scattering and show that
these QCD Monte Carlo-based codes must be retuned to accommodate the
strangeness enhancement relative to pions observed in LHC data.

http://arxiv.org/icons/sfx.gif